Storage-battery plate.



PATEN'TED MAY 24, 1904.

E. W. SMITH. STORAGE BATT RY PLATE. 1 APPLICATION I'ILIQD'SEPT. 10, 1903,

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Patented May 24, 1904.

EDWARD wANToN sMITH, or PHILADELPHIA, PENNSYLVANIA, ssIeNoR I To ELEcTRIc STORAGE BATTERY COMPANY, OF PHILADELPHIA, PENN- SYLVANIA, A CORPORATION on NEW JERSEY.

' STORAGE- ATTERY PLATE.

SPECIFICATION forming part of Letters Patent No. 760,712, dated Ma.y 24, 1904, Application filed September 10, 1903. Serial No. 172,542. (No model.)

To all whom it may concern.

Be it known that I, EDWARD WANToN SMIT acitizen of the United States, residing in Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements in Storage-Battery Plates, of which the following is a specification.

There is a type of storagebattery plate which comprises, in general terms, a grid having the faces of its respective openings covered by a perforated sheet or sheets.

It is the principal object of the present invention to provide for economically and effi- 5 ciently securing the perforated cover-plate to the grid.

To this and other endshereinafter set forth the invention, stated in general terms, comprises the improvements to be presently described and finally claimed.

The nature, characteristic features, andscope of the invention will be more fully un; derst'ood from the following description, taken in connection with the accompanying draw- 2 5 ings, forming part hereof, and in which ,Figure 1 1s a sectional view of a port on of a plate fitted with means for connecting the grid and perforated cover-plate which embody features of the invention. Figs. 2, 3, 3 and 4: are similar views embodying modifications of the invention, and Fig. 5 is a face view taken from the left of Fig. 1 and showing a complete plate.

Referring to the drawings, and more particu- 3 5 larly to Fig. 1, the grid is shown as made in two parts 1 and 2, which meet at or about the middle of the plate, although the point of meeting is not material.

3 designates the perforated cover-plates, and

4 they are secured to the grid by means of projections 4, which are cast with and extend from the grid and engage the perforations in the cover-plate, as shown. The'cover-plates are provided with corrugations or grooves 10,

arranged in alinement with the bars of the grid, so that the lead which is cast from the grid through the perforations in the coverplate serves to fill these grooves or corrugations.

5 designates active material. It is convenient to cast half of the grid and its projections onto one of the cover-plates by, means of a suitable mold and to then properly position the active material and to finally secure the two parts of the grid together. I As shown in Fig. 1, this is accomplished by means of a rivet 6, projecting from half of the grid and idapted to penetrate an opening in the other In Fig. 2 there is illustrated a modification of means for securing the two parts of the grid together. In that figure, 7 is what may be called a dowel -rivet, which projects from half of the grid and is tightly fitted into a socket formed in the'other half of the grid,

the requisite tightness, if necessary, being secured by applying pressure to the halves of the grid, so as to force them together.

As shown in Figs. 3and 4, the rivet 8 is separate and extends through the plate. In Fig. 3 the described cast projections are employed only upon one side of the plate, the

cover-plate on the other side being secured by the rivet 8, and, furthermore, the

grid 9 is made in one part instead of two.

It will be obvious to those skilled in theart to which my invention relates that modifications 'may be made in details without departing from the spirit thereof. Hence I donot limit myself to the precise construction and mode of procedure hereinabove set forth; but,

Having thus described the nature and-objects of my invention, what'I claim as new, and desire to secure by Letters Patent, is

1. Means for connecting the grid and perforated cover-plate, which comprise grooves in the cover-plate, and projections cast from the grid and engaging perforations of the plate and occupying the grooves thereof, substantially as described.

2. A plate consisting of a two-part grid, j

perforated cover-plates for the faces of the plate, projections cast from the grid and engaging perforations ofthe plate, and rivets for securing the parts of the grid together, sub- 1 of the plate, a perforated cover-plate for each stantially as described.

3. A plate consisting of a two-part grid, perforated cover-plates for the faces of the plate, projections east from the grid and engaging perforations of the plate, and rivets integral with one of said parts for securing the parts together, substantially as described.

49A plate consisting of a twopart grid whereof each part is provided With projections cast from the grid and engaging perforations of the faces of the plate, and whereof one part is provided With a projection which looks the other part, substantially as described.

In testimony whereof I have hereunto signed my name.

EDWARD W ANTON SMITH.

In presence of BRUCE FORD, Geo. M. HOWARD. 

